Adjustable shoring device



J. S. BIRCH v Sept. 1,1925. I I 1 551 ADJdSTABLE SHORING DEVICE Filed July 1-1, 1923 T F' 1- J J I //////A l Patented Sept. 1, 1925.

IAMEs s nmon, on cIIIoAGo, ILLINOIS.

ADJUSTABLE SHORING- DEVICE.

Application filed July 11',

To all w/ro-m. it may concern:

Be it known that I, JAMES S. BIRCH, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and usefulImprovements in an Adjustable Shoring Device; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

This invention relates to an adjustable shoring device for use in the construction which is designed to support concrete moulds or other parts during the construction of buildings.

It is an object of this invention to provide a strong and simple shoring standard that may be quickly adjusted for obtaining any desired height of support and that is pro vided with an auxiliary adjustment for tak- 'ing up any looseness and for obtaining an accurate and fine adjustment.

\Vith these and other objects in view, which will become more apparent in the following description and disclosures in the drawings, this invention comprises the novel mechanism and combinations hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings, which illustrate a preferred. embodiment of this invention, and in which similar reference numerals refer to similar features in the different views:

Figure 1 is a side elevational view of the shoring standard involvingthis invention, with a supported concrete mould shown in transverse section.

Figure 2 is an end elevational View of the shoring standard with the concrete mould shown in longitudinal section.

Figure 3 is a sectional view upon the line 3-3 of Figure 1. i

Figure 4 is a sectional view upon the line -l-4-of Figure 1 Figure 5 is a top plan. view of the shoring standard.

In referring, now, to the'drawing, it will be observed that the shoring standard comprises an adjustable base consisting of a pair of superimposed wedge blanks 1 and 2 whichare adjustably held together by the bolts 3 which extendfrom the wedge block 2 through suitable slots 4 in the wedge block 1923.. Serial No. 650,755.

1, clamping nuts 5 and suitable washers being used to clamp the two wedge blocks in adjusted position. The top of the wedge block 1 is provided with a socket for receiving the lower end of a hollow standard 6. An upper post or member '7 slidably extends into the standard 6 and is telescopically adjustable with relation thereto. A collar 8 having upwardly extending tangs is secured at a suitable distance below the upper end of the post 7 and a supporting platform 9 is secured upon the upper end of Y the post 7 and rests upon the collar 8. The

v platform 9 preferably consists of a relatively long block 9 having a central aperture for receiving the upper end ofthe post 7 and a short block 9 having a socket for receiving the tip of the post? and which is superposed upon the block.9= and flanked upon its ends by the blocks 9 which are of simicross head 11 relatively slidable upon the post 7, normally rests upon the flanged'coL lar 10. The post 7 is provided with an adjustable flanged collar 12 which normally rests upon the top of the cross head 11 and aids to support the post 7 and its platform upon the standard 6. I

A second cross head 13 is mounted to slide vertically upon the standard 6, and supporting and bracing rods 14 extend through the outer portions of the. cross heads 11 and 13 and through the blocks, 9 and 9 The lower ends of these rods are bent or crimped over the lower surface of the cross head 13 and the upper ends thereof are bent into the form of right angled hooks which fit in suitable sockets in the top of the block 9 so as not to project above the up er surface thereof. An adjustable flange collar 15 is adapted to be secured by a set screw or I the like upon each rod 14, at the u per surface of the cross head 11. The anges of these collars are normally adapted to rest upon the cross head 11 and support the platform 9 at the desired height. Similar flanged collars 16 are secured upon the rods 14' just below the platform 9 for supporting the same upon the rods 14.

In using this shoring device, the supporting platform 9 may be raised or lowered as desired by loosening the collars 12 and 15 upon the block 9". support a pair of beams or the like, the blocks whereby the post 7 may slide relatively to the standard 6, and the rods 14 may slide relatively to the cross head 11; the cross head 13 being of course, raised or lowered with the rods 14 according to the desired adjustment. When the platform 9 has been raised or lowered as desired the collars 12 and 15 are respectively secured to the post 7 and rods 14 by their respective set screws so as to rest upon the cross head 11. 7

if for any reason, the above described adjustment is not sufficiently accurate or if the foundation of the base should sink, the

nuts 5 on the bolts 3 in the base may be loosened whereby the wedge block 2 may be shifted relatively to the block 1 for effecting whatever minor adjustment is desired.

In the presentexemplification of this invention, 1 have shown the shoring standard as supporting a concrete form 17 resting WVhen it is desired to 9 may come into use. Sometimes two or more such shoring standards are used in spaced relation and in such cases they may be connected by cross-bars 18 after they have been properly adjusted.

From the foregoing, it will be apparent that a very simple shoring device has been provided which has a ma or adjustment for securing comparatively large ad ustments and a minor ad ustm'ent for obtalning a 11I12Ll accurate and fine adjustment.

bers supported upon said base,'a platform resting upon the upper member,'a cross head resting upon the upper end of the lower member, an adjustable collar upon the upper member normally resting upon said cross head, a second cross head slidably mounted upon the lower 'meinber, 'rods extending through said cross heads and platform,'abutments on said rods for supporting said platformfand adjustable abutments on said'rods for supporting the platform upon said first mentioned cross head.

9,. A shoring standard, comprising a standard a post telescopically adjustable with relation to said standard, a platform supported upon the upper end of 'said post, a cross head supported upon the upper end of said standard, and means adjustable as to both said platform and'cross head and providing an additional support for said platform. V v

ln'te stimony "whereof I'have hereunto subscribed my name.

JAMES s. BIRCH. 

